This document describes an IoT-based smart irrigation system that uses soil moisture, temperature, and humidity sensors to automatically irrigate crops without human intervention. The system has a transmitter section with sensors that measures the soil conditions and a receiver section consisting of a microcontroller and modules that receives the sensor data and controls the irrigation. The sensor data is sent wirelessly via ZigBee to reduce water consumption and over/under irrigation while increasing agricultural production.

1. IOT BASED SMART IRRIGATION
SYSTEM
PROJECT GUIDE:
SHRI VINOD KUMAR SINGH
GROUP MEMBERS:
ARUN KUMAR

2. INTRODUCTION
 Monson dependent Indian Agriculture.
 Automatic irrigation.
 An over irrigation and under irrigation.
 Soil moisture, air humidity, temperature and water
level in the soil are wireless technology for batter
production.

3. Objectives:
 To save water and reduce human intervention in the
agriculture field
 To get the output of soil water Sensor and provide
water to crop.

4. System Hardware Design
 The hardware consist of two section :
 Transmitter Section
 Receiver Section
 The system also consist of microcontroller 328P,GSM
module , LCD , and ZigBee module

5. TRANSMITTER

6. RECEIVER

7. WORKING
• The block diagram of the proposed irrigation system is
shown in Above. The main advantage of the proposed
irrigation system is that it can send the information of a
soil to the user through IOT network for irrigation.
• Power supply is given to the circuit in the form of
voltage or current. Here soil moisture sensor measures
the water content of soil and its output is fed to the
amplifier, which is used to improve the gain value.
• And this measured value is given to the Arduino Uno
as analog input. And second input of the Arduino
comes from LDR and laser. These two analog inputs are
converted to digital output values by Arduino Uno.

8. SENSORS
• Three sensor used in the system which are
mainly as follows:
• Temperature
• Soil moisture
• Humidity

9. TEMPERATURE SENSOR
•LM35
•Output voltage is linearly proportional to the Celsius
(centigrade) temperature.
•Temperature range is -55to 150 degree C.

10. SOIL MOISTURE SENSORS
•Common type is a frequency domain sensor .
•Neutron moisture gauge.
•In this sensor we are using 2 probes to be dipped into the soil
as per moisture we will get analog output variations from
0.60-12 volts.

11. HUMIDITY SENSORS
•It measures both air temperature and moisture .
•Relative humidity expressed as a percentage .
•HS1100 is used for sensing humidity .
•The output in terms of frequency range 5khz to
10khz.

12. ADVANTAGES
• Increase in productivity.
• Reduced water consumption.
• Safe.
• No manpower required.
• Reduce soil erosion and nutrient leaching.
• Require smaller water source.

13. REFERENCES
• Tope G., Patel A. 2014 . International Journal
Of Current Engineering And Scientific
Research (IJCESR). VOL.2.
• www.ijert.org/ smart – irrigation –system –
using –wireless-sensor-network
• The ZigBee alliance website online available
https://www.zigbee.org .

14. THANKYOU